Shirabe
打

打ダース

Common Noun
English jmdict
1
noun (common) (futsuumeishi) word usually written using kana alone dozen
from eng «doz(en)»
その品物を１ダースにつき３ドルで買う。
I buy the goods at $3 a dozen.

打だ

Noun counter
English jmdict
1
noun (common) (futsuumeishi) sports hitting a ball (with a bat, golf club, etc.);batting;stroke